Alpine 7893 Owners Manual - Page 9

Setting the Bass Control You can change the Bass Frequency emphasis to create your own tonal preference. 1 Press the CENTER f button to select the BASS (bass Center frequency) control mode. → BASS → TREBLE → normal mode 2-1 Setting the bass Center frequency: Press the g DN or f UP button to select the desired bass center frequency. → 60Hz ↔ 70Hz ↔ 80Hz ↔ 90Hz ← → 180Hz ↔ 150Hz ↔ 130Hz ↔ 100Hz← Emphasizes the displayed Bass frequency ranges. 2-2 Setting the bass Band Width (Q-Factor): Press the BAND button to select the desired bass Band Width. → B. Width1 → B. Width2 → B. Width3 → B. Width4 (Wide Narrow) Changes the bass boost band width to wide or narrow. A wide setting will boost a wide range of frequencies above and below the center frequency. A narrower setting will boost only frequencies near the center frequency. 2-3 Setting the bass Level: Turn the Rotary encoder to select the desired bass Level (-7~+7). You can emphasize or weaken the bass frequency. NOTES • If no buttons are pressed within 5 seconds, the Bass control setting will be turned off automatically. • The settings of the Bass Level will be individually memorized for each source (FM, AM, XM, CD, etc.) until the setting is changed. Once you set Bass frequency and Bass Band Width for one of sources (FM, AM, XM, CD, etc.), this setting becomes effective for all those sources. Depending on the connected devices, some functions and display indications do not work. • This function is inoperable when DEFEAT is ON. Setting the Treble Control You can change the Treble Frequency emphasis to create your own tonal preference. 1 Press the CENTER f button to select the TREBLE (treble Center frequency) control mode. → BASS → TREBLE → normal mode 2-1Setting the treble Center frequency: Press g DN or f UP button to select the desired treble Center frequency. → 10.0kHz ↔ 12.5kHz ↔ 15.0kHz ↔ 17.5kHz ← 2-2 Setting the treble Level: Turn the Rotary encoder to select the desired Treble Level (-7~+7). You can emphasize the treble frequency. NOTES • If no buttons are pressed within 5 seconds, the Treble control setting will be turned off automatically. • The settings of the Treble Level will be individually memorized for each source (FM, AM, XM, CD, etc.) until the setting is changed. Once you set Treble frequency for one of sources (FM, AM, XM, CD, etc.), this setting becomes effective for all those sources. Depending on the connected devices, some functions and display indications do not work. • This function is inoperable when DEFEAT is ON. Adjusting the built-in Crossover The High and Low Pass Filters on this unit can be adjusted to suit your personal taste. 1 Press and hold the X-OVER button for at least 2 seconds. Repeat this procedure to select the desired parameter. → HPF → LPF∗ → normal mode ∗ When the subwoofer output of this unit is turned OFF, LPF and phase are deactivated. 2 Press the g DN or f UP button to select the desired setting. 1. HPF (Setting the High Pass Filter): FLAT (OFF) ↔ 80Hz ↔ 120Hz ↔160Hz Outputs all frequencies higher than that selected according to your preference. 2. LPF(Setting the Low Pass Filter): FLAT (OFF) ↔ 80Hz ↔ 120Hz ↔160Hz Outputs all frequencies lower than that selected according to your preference. (Only available when using the subwoofer output from this unit.) NOTES • If no buttons are pressed within 5 seconds, the setup menu returns to the normal audio display. • These functions are inoperative when an external, Ai-NET processor is connected. • If HPF, LPF, Bass Control and Treble Control are all set to ON, depending on the Bass Control and Treble Control settings, you may not be able to reinforce the sound effect. • Except when the HPF and LPF is turned OFF, the subwoofer is in monaural mode. • When the subwoofer is set to OFF, LPF mode and change of phase does not work. Emphasizes the displayed Treble frequency ranges. 7-EN